616662411 has 4 divisors (see below), whose sum is σ = 822216552. Its totient is φ = 411108272.

The previous prime is 616662401. The next prime is 616662433. The reversal of 616662411 is 114266616.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 616662411 - 2¹⁰ = 616661387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (616662401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102777066 + ... + 102777071.

It is an arithmetic number, because the mean of its divisors is an integer number (205554138).

Almost surely, 2^616662411 is an apocalyptic number.

616662411 is a deficient number, since it is larger than the sum of its proper divisors (205554141).

616662411 is a wasteful number, since it uses less digits than its factorization.

616662411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205554140.

The product of its digits is 10368, while the sum is 33.

The square root of 616662411 is about 24832.6883562775. The cubic root of 616662411 is about 851.1690539102.

The spelling of 616662411 in words is "six hundred sixteen million, six hundred sixty-two thousand, four hundred eleven".